overcast

American  

[oh-ver-kast, -kahst, oh-ver-kast, -kahst, oh-ver-kast, -kahst, oh-ver-kast, -kahst, oh-ver-kast, -kahst] / ˈoʊ vərˈkæst, -ˈkɑst, ˈoʊ vərˌkæst, -ˌkɑst, ˌoʊ vərˈkæst, -ˈkɑst, ˈoʊ vərˌkæst, -ˌkɑst, ˈoʊ vərˌkæst, -ˌkɑst /

adjective

1. overspread or covered with clouds; cloudy.

   an overcast day.

2. Meteorology. (of the sky) more than 95 percent covered by clouds.

3. dark; gloomy.

4. Sewing. sewn by overcasting.

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verb (used with object)

overcast, overcasting

1. to overcloud, darken, or make gloomy.

   Ominous clouds began to overcast the sky.

2. to sew with stitches passing successively over an edge, especially long stitches set at intervals to prevent raveling.

verb (used without object)

overcast, overcasting

1. to become cloudy or dark.

   By noon it had begun to overcast.

noun

1. Meteorology. the condition of the sky when more than 95 percent covered by clouds.

2. Mining. a crossing of two passages, as airways, dug at the same level, in which one rises to pass over the other without opening into it.

overcast British  

adjective

1. covered over or obscured, esp by clouds

2. meteorol (of the sky) more than 95 per cent cloud-covered

3. gloomy or melancholy

4. sewn over by overcasting

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verb

1. to make or become overclouded or gloomy

2. to sew (an edge, as of a hem) with long stitches passing successively over the edge

noun

1. a covering, as of clouds or mist

2. meteorol the state of the sky when more than 95 per cent of it is cloud-covered

3. mining a crossing of two passages without an intersection

Etymology

Origin of overcast

1175–1225; Middle English (v.); see over-, cast

Explanation

Use the adjective overcast when you're describing a cloudy sky. An overcast day can be dark, cold, and gloomy, or just quiet and calm. A day that's gray and cloudy is overcast, and a dull, sunless sky can also be described this way. A less common way to use overcast is when you talk about sewing — an overcast stitch catches the edge of the fabric to keep it from fraying — and the stitch itself is sometimes called an overcast. Before the weather-related adjective was coined, overcast was a verb meaning "to cover" or "to overthrow."

Example Sentences

The midday sun has only just begun to peek through the overcast sky.

From Los Angeles Times • Feb. 27, 2026

And by practicing those little acts of love with each other every day, they make their little part of Minnesota all the more bright, even in the perpetually overcast winter.

From Salon • Feb. 7, 2026

It's been dull too, for Dyce in Aberdeen where the sun has not made an appearance for the last fortnight making it the longest overcast spell since 1957.

From BBC • Feb. 6, 2026

A line of police officers stood to salute the passing coffin under an overcast sky.

From Barron's • Jan. 28, 2026

Outside, it’s cloudy and overcast, Amsterdam winter, as I ride my bicycle down our narrow, haphazard streets.

From "Girl in the Blue Coat" by Monica Hesse

Related Words

• dismal
• dreary
• dull
• hazy
• leaden
• murky